gpart: pre-check failed: Operation canceled

[Tomasz CEDRO]

Hello world,

I cannot use gpart on MBR for anything on 11.2-RELEASE AMD64 - resize,
delete, add - the only information I get is:

gpart: pre-check failed: Operation canceled

Why is that? fdisk works fine. gpart seems to be fdisk's replacement
and is supposed to work with MBR.. any hints welcome :-)

--
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info